Final answer:
The claim is false; ONT devices have PWR (Power), PON or OPTIC, and LOS indicator lights for proper operation, instead of NTRK and MGNT.
Step-by-step explanation:
The statement regarding the lights on the G240-A Optical Network Terminal (ONT) indicating a proper connection on the GPON network as being PWR, NTRK, and MGNT is False. Typically, the lights or LEDs on an ONT device that indicate proper connection and operation are PWR (Power), PON or OPTIC (Passive Optical Network), and LOS (Loss of Signal) which indicates there is no signal if lit. Some ONTs may also have additional indicators such as LAN connections. It is essential to consult the specific device manual for the correct LED indicators.